The number of orders arriving at an online vendor over the course of a day has a Poisson distribution with expectation 1200. All of the orders are independent, and each order has a cost represented by ?? . The expectation of this cost is 60 ?? and the variance is 120 ??2 . Calculate the expectation and the variance of the daily money flowing into this online vendor as a result of these orders.

The number of orders arriving at an online vendor over the course of a Iz'najiF has a Poisson distribution with expectation 1200. All of the orders are independent, and each order has a cost represented by Xi. The expectation of this cost is 60 TL and the variance is 120 TE. Calculate the expectation and the variance of the daily money owing into this online vendor as a result of these orders